Thanks for the additional logs, those are very curious..
"""
Sep 5 05:55:40 MonacoSIT4 NetworkManager[3448]: <warn> [1725530140.8548]
keyfile: load:
"/run/NetworkManager/system-connections/netplan-ens5f1np1.nmconnection": failed
to load connection: cannot access file: No such file or directory
"""
"netplan-ens5f1np1.nmconnection" is clearly a Netplan generated
connection profile, that NetworkManager is apparently aware of,
otherwise it wouldn't try loading it. But at the time of reading it, it
seems to be gone (deleted?).
I'm not exactly sure what's happening here, maybe some race condition
with a "systemd daemon-reload" running in parallel, that makes Netplan
delete and re-generate the configuration files at the very same time
that NM tries reading them. This needs more investigation.
** Also affects: netplan.io (Ubuntu)
Importance: Undecided
Status: New
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Touch seeded packages, which is subscribed to network-manager in Ubuntu.
https://bugs.launchpad.net/bugs/2083129
Title:
[Lenovo Ubuntu 24.04.4 Bug] netplan static IP address assignment use
NetworkManager as renderer would be lost static ip
Status in netplan.io package in Ubuntu:
New
Status in network-manager package in Ubuntu:
New
Bug description:
On Ubuntu 22.04.4, to configure a system to use static address assignment,
create a netplan configuration in the file, like
/etc/netplan/00-installer-config.yaml. After assigning the network
configuration abstraction renderer to NetworkManager not networkd in
/etc/netplan/00-installer-config.yaml, then we do warm reboot test, some of the
NIC interface lost their static ip in some reboot cycles when the rendered is
NetworkManager, but networkd as a renderer is works well, all NIC interfaces
can get their corresponding IP that configured in netplan confile file.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/netplan.io/+bug/2083129/+subscriptions
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